EXPANDED MESH TERMINOLOGY AND TYPES

 

A. WIDTH OF MESH (S.W.D.)
B. LENGTH OF MESH (L.W.D.)
C. WIDTH OF OPENING
D. LENGTH OF OPENING
E. STRAND THICKNESS
F. STRAND WIDTH

Crosssection illustration showing the location of dimensions in the product data table.

TERMINOLOGY

S.W.D. Short Way Diamond​
L.W.D ​Long Way Diamond​
Bond Area where strands intersect​
​Strand Width Surface area of metal strips forming diamond​​
Strand Thickness Gauge of material being expanded
​Flattening Flattened short dimension diamond parallel to rolls​​
Cross Flattening* Flattened long way diamond parallel to rolls
​Deburring Mesh passed through wire brushes to remove burns​​
Levelling Mesh roller levelled to reduce curving​​

* Cross flattening results in distortion of the diamond in expanded mesh.

CATEGORYSTYLE NO. (Use this number for ordering)WEIGHT PER 100 SQ. FT.CENTRE TO CENTRE OF BRIDGES (A – SWD)CENTRE TO CENTRE OF BRIDGES (B – LWD)SIZE OF OPENINGS (C – SWD)SIZE OF OPENINGS (D – LWD)STRAND (E – THICK.)STRAND (F – WIDTH)
STANDARD STEEL–3/16-22–1 1/2-9 (10 Ga.)56–1200.203–1.330.5–30.11–1.160.313–2.450.03–0.1350.047–0.142Hide extra rows
FLATTENED STEEL–3/16-22F–1 1/2-9F (10 Ga.)72–1140.218–1.330.5–3.200.094–10.343–2.560.027–0.110.063–0.158Hide extra rows
ALUMINUM STANDARD–3/16-.032–1/1 2-.12528–430.203–1.330.5–30.08–1.1870.313–2.50.032–0.1250.06–0.162Hide extra rows
ALUMINUM FLATTENED–3/16-.032F–1 1/2-.125F20–410.218–1.330.5–3.150.094–10.343–2.750.028–0.0950.06–0.181Hide extra rows
STAINLESS STEEL STANDARD–5/16-20ST–1 1/2-9ST86–1370.333–1.331.0–3.00.219–1.130.75–2.500.037–0.140.078–0.155Hide extra rows
STAINLESS STEEL FLATTENED–5/16-20STF–1 1/2-9STF82–1310.333–1.331.0–3.20.18–0.9370.79–2.630.03–0.1190.069–0.165Hide extra rows

ALL WEIGHTS AND DIMENSIONS SHOWN ABOVE ARE APPROXIMATE

Special size sheets can be produced to order.

EXPANDED STEEL GRATING

STYLEWEIGHT PER SQUARE FOOTSTANDARD SHEET SIZE FEET – SWDDIAMOND SIZE CENTRE TO CENTRE INCHES – LWDACTUAL SIZE OF OPENING – SWDSTRAND SIZE INCHES – LWDOVERALL THICKNESS IN INCHES – SWDLWDWIDTHTHICK
33 lbs841.335.330.943.440.2640.183
44 lbs841.335.330.943.440.30.215
55 lbs841.335.330.8133.380.3310.25
6.256.25 lbs841.415.330.8133.380.350.312

Some of our service centres also carry the following in stock:

– 3′ SWD x 8′ and 10′ LWD; 8′ and 10′ SWD x 3′ LWD
– 4′ SWD x 8′ and 10′ LWD; 8′ and 10′ SWD x 4′ LWD
Special sizes available on request.

Expanded Mesh Grating also produced in Aluminum and Stainless.

DEFLECTION DATA

TYPE CONCENTRATED TYPE UNIFORM
24″ SPAN 36″ SPAN 48″ SPAN 24″ SPAN 36″ SPAN 48″ SPAN
C 275# 165# 75# U 275# 100#
3# D .250″ .250″ .250″ D .250″ .220″
C 440# 220# 100# U 350# 150# 50#
4# D .250″ .250″ .250″ D .240″ .245″ .250″
C 540# 310# 140# U 600# 175# 100#
5# D .245″ .250″ .250″ D .240″ .240″ .250″
C 800# 300# 150# U 800# 300# 115#
6.25# D .220″ .240″ .240″ D .220″ .250″ .240″

C= Concentrated load per square foot
U= Uniform load per square foot
D= Deflection in inches
Material meets U.S. Federal specification RR-G-661b for deflection requirements and all requirements of U.S. Military specifications MIL-M-17194-C and MIL-6-18015